cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A279742 Number of 2 X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 0
2 2
3 6
4 14
5 26
6 48
7 84
8 146
9 250
10 426
11 722
12 1220
13 2056
14 3458
15 5806
16 9734
17 16298
18 27256
19 45532
20 75986
21 126690
22 211042
23 351266
24 584204
25 970896
26 1612418
27 2676054
28 4438526
29 7357370
30 12188736
31 20181732
32 33398930
33 55244746
34 91336218
35 150937586

List of values

[0, 2, 6, 14, 26, 48, 84, 146, 250, 426, 722, 1220, 2056, 3458, 5806, 9734, 16298, 27256, 45532, 75986, 126690, 211042, 351266, 584204, 970896, 1612418, 2676054, 4438526, 7357370, 12188736, 20181732, 33398930, 55244746, 91336218, 150937586]